| RFC | Title | Status | Reference | Notes |
|---|---|---|---|---|
| 2908 | The Internet Multicast Address Allocation Architecture | Obsolete | D. Thaler; M. Handley; D. Estrin (September 2000). The Internet Multicast Address Allocation Architecture. Network Working Group. doi:10.17487/RFC2908. RFC 2908. | Obsoleted by RFC 6308. |
| 2915 | The Naming Authority Pointer (NAPTR) DNS Resource Record | Proposed Standard | Mealling, M; Daniel, R (September 2000). The Naming Authority Pointer (NAPTR) DNS Resource Record. Network Working Group. doi:10.17487/RFC2915. RFC 2915. | Obsoleted by RFC 3401, 3402, 3403, 3404. Updates RFC 2168. |
| 2923 | TCP Problems with Path MTU Discovery | Informational | K. Lahey (September 2000). TCP Problems with Path MTU Discovery. Network Working Group. doi:10.17487/RFC2923. RFC 2923. | |
| 2928 | Initial IPv6 Sub-TLA ID Assignments | Informational | R. Hinden; S. Deering; R. Fink; T. Hain (September 2000). Initial IPv6 Sub-TLA ID Assignments. Network Working Group. doi:10.17487/RFC2928. RFC 2928. | |
| 2974 | Session Announcement Protocol | Experimental | Handley, M; Perkins, C; Whelan, E (October 2000). Session Announcement Protocol. Network Working Group. doi:10.17487/RFC2974. RFC 2974. | |
| 2984 | Use of the CAST-128 Encryption Algorithm in CMS | Proposed Standard | C. Adams (October 2000). Use of the CAST-128 Encryption Algorithm in CMS. Network Working Group. doi:10.17487/RFC2984. RFC 2984. |
